Section Modulus Calculation
Section Modulus Calculation
(OP)
Good Afternoon,
I have been browsing the forum for a number of months and now I have decided to create an account, to further my knowledge and pass on what I currently understand.
I have a question which may be simple to someone but currently driving me up the wall.
It is about calculating section modulus's (moments of intertia) for a circular hollow section with a sector removed. From reading roarks forumulas for stress and strain I don't seem to be able to find a solution to my question.
I understand it is not as simple as calculating the moment of inertia of a circular hollow section and then subtracting the sector section.
Does anyone have an idea of how to calculate the moment of inertia of a circular hollow section with a sector removed?
Thanks to replies in advance.
I have been browsing the forum for a number of months and now I have decided to create an account, to further my knowledge and pass on what I currently understand.
I have a question which may be simple to someone but currently driving me up the wall.
It is about calculating section modulus's (moments of intertia) for a circular hollow section with a sector removed. From reading roarks forumulas for stress and strain I don't seem to be able to find a solution to my question.
I understand it is not as simple as calculating the moment of inertia of a circular hollow section and then subtracting the sector section.
Does anyone have an idea of how to calculate the moment of inertia of a circular hollow section with a sector removed?
Thanks to replies in advance.






RE: Section Modulus Calculation
1 - 1st draw the figure you want (scale 1:1)
2 - transform the figure in a region
3 - then check the mass property and you will have : area,perimeter, center of gravity, inertia moduli with reference to the axxis of the center of gravity or to another one
Regards
RE: Section Modulus Calculation
I had got so involved in trying to calculate the section properties I completely forgot about using autoCAD to find the section properties.
RE: Section Modulus Calculation
RE: Section Modulus Calculation
Michael.
"Science adjusts its views based on what's observed. Faith is the denial of observation so that belief can be preserved." ~ Tim Minchin